# Duo Viewer — Split-screen browser & files

> Split-screen browser & files (iPhone/iPad app by Liangjun Song.)

- Source: https://appshunter.io/ios/app/duo-viewer/id6816411621 (this page in markdown: same URL + `.md`)
- Developer: [Liangjun Song](https://appshunter.io/developer/6816411623)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 26.0 · 2 MB
- Languages: American English
- Released: 2026-10-05
- Data updated: 2026-10-24

## What is Duo Viewer?

Make room for two with Duo Viewer, a split-screen browser and file viewer for iPhone.

YOUR FAVOURITE WEB APPS, TOGETHER
Open two websites on one screen. Compare pages, browse social feeds alongside online video, or keep a reference page within view. Drag the divider to adjust your workspace, minimise a pane when you need more room, and turn your iPhone for a landscape layout.

FILES BESIDE THE WEB
Import files from the Files app and organise them in Duo Viewer. View PDFs, supported Office and iWork documents, images, text, audio, and video alongside a website or another file.

MAKE IT YOUR WORKSPACE
• Browse websites in two panes
• Save bookmarks and revisit recent addresses
• Open links in the other pane
• Resize panes and use portrait or landscape mode
• Import, view, rename, and delete supported files
• Resume your saved workspace

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Duo Viewer Pro | $6.99 | one-time |


## Is Duo Viewer safe?

Not enough ratings yet to assess Duo Viewer.

## Is Duo Viewer legit?

Duo Viewer has limited verification signals. The AppsHunter Legitimacy Score for Duo Viewer is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*